[AZ-364] [AZ-360] Refactor C11+C08: decompose RouteProcessingService

Extracts RouteRegionMatcher, RouteCsvWriter, RouteSummaryWriter,
RouteImageRenderer, TilesZipBuilder, RegionFileCleaner from the
~750-LOC RouteProcessingService god-class. Moves TileInfo to its
own file as a sealed record. Replaces IServiceProvider scope-
locator with a direct IRegionService injection (folds AZ-360 / C08).
Updates DI registration and tests.

Tests: 133 / 133 unit + 5 / 5 smoke green; integration suite exit 0.
Pixel-equivalent stitched route image and byte-equivalent CSV /
summary / ZIP outputs verified through the smoke run.

Co-authored-by: Cursor <cursoragent@cursor.com>

SatelliteProvider.Services.RouteManagement/TileInfo.cs

@@ -0,0 +1,7 @@
+namespace SatelliteProvider.Services.RouteManagement;
+
+// AZ-364 / C11: extracted from RouteProcessingService where it lived as a
+// trailing public class. Carries the per-tile information that the route
+// pipeline accumulates from per-region CSVs and feeds into RouteCsvWriter,
+// RouteImageRenderer, and TilesZipBuilder.
+public sealed record TileInfo(double Latitude, double Longitude, string FilePath);